Tape cutting machine



y 1944- M. SCHIMMEL. I 2,354,294

TAPE CUTTING MACHINE Filed March 30, 1945 Fig. 5.

INVENTOR. Moe Schimme'l wand 4 Patented July 25, 1944 TAPECUTTING*MACHINE Moe Schimmel, New York, N. Y.

Application March 30, 1943, Serial No. 481,086

1 Claim.

This invention relates to mechanisms for cutting off pieces of equallength from a long tape which may be wound on a spool.

The primary object of this invention is to provide a cutting machine forthe above mentioned purpose having a plurality of cutting blades whichare arranged at such angles that the pieces cut off by this device willhave trapezoid form.

A further object of this invention is to provide a cutting machine ofthe above mentioned character which affords facilities for changing theangles at which the tape is out and for changing the length of the tapepieces which are cut off, by substituting one part of the machine byanother, similar part.

Other objects and advantages of the invention will become apparentduring the course of the following description, taken with the drawing,wherein,

Figure l is a side elevation of the entire machine;

Figure 2 is a bottom plan view of the entire machine Figure 3 is a topplan view of a detail of the machine partially broken away;

Figure 4 is a side elevation of the detail shown in Fig. 3; and

Figure 5 is a plan view of several tape pieces cut off by-the machine.

Similar numerals refer to similar parts throughout the several views.

The table or plate I, its legs or standards 2, and the rails 3, whichcarry a reel or spool 4 upon which the tape 5 is wound, constitute theframework of the machine. The rails 3, which are attached to the top ofthe table I, carry a hanger 6 preferably consisting of two rails asshown in Figs. 1 and 2. Rails '1, which are parallel to the rails 3, are:pivotally secured to the hanger 5 at 8. The rails I carry bearings 9 inwhich turns the shaft In, to which the wheels II and I2 are secured.Bearings I4, in which turns a shaft [5 carrying a roller 16, are securedto the top of the rails 3 in such a manner that the roller I6 isadjacent to the face of the wheel II. The rails I are biased upwardly byany suitable means, preferably by bolts ll which extend through therails 3 and 1 and which are provided with springs [8 between the rails land the nuts at the lower end of the bolts l1, so that an adequatepressure of the wheel llwhich extends partially through a slot l3 in thetable I-against the roller IE will always be assured. The wheel H andthe shaft 10 may be driven by a belt l9 passing round the wheel I2 andthe pulley 2 I, which may be turned by an electro-rnotor or by any othersource of power.

The tape 5 is guided toward the wheel II and the roller l5, preferablyby rolling pins 22 or in any other suitable manner, and is led betweenthe roller I5 and the wheel ll so that it will be taken along and willbe wound off the spool or reel 4 when the Wheel H revolves in aclockwise direction.

A plurality of knives or cutting blades 23, two in the present instance,are mounted on the face of the wheel II in such a manner that the tape 5will :be cut to trapezoid pieces 25, as indicated in Fig. 5, when .thetape 5 passes between the revolving wheel H and the roller I6.

I prefer to carry out this feature of my invention in the manner shownin the drawing, where it will be seen that the wheel I l is providedwith a rim 24, preferably consisting of a tough material having a roughsurface such as wood, hard rubber, or the like; that the cutting bladesor knives 23 are secured to the rim 24 at equal distances from eachother; that the cutting blades or knives 23 protrude slightly over theface of the rim 24; and that they are angularly disposed to the axis ofthe wheel H. The angle at which one cutting blade 23 is disposed to theaxis of the wheel ll differs from the angle at which the next followingcutting blade is disposed to the axis of wheel H so that if, forinstance the first cutting blade carries out a cut 21 (Fig. 5), thatthen the next following cutting blade carries out a cut 28, so that thecut pieces 25 will be of a trapezoid form.

The cutting blades 23 can be secured to the rim 24 in any suitablemanner, for instance they can be imbedded in angular slots and can beheld by screws or by any other means. In order to facilitate theinterchangin of cutting bladesfor instance for the purpose of replacingworn out blades or for changing the length of pieces which are to be cutoff-I prefer to provide the rim 24 with angularly disposed open recesses30 and to secure a cutting blade 23 to one of the upright walls of eachrecess 30 by means of screws 3|.

In order to change the angle at which the tape is being cut, I removethe rim and replace it by another rim which is provided with differentlyinclined recesses 30; or, if the cutting angle is to be changed onlyslightly, I insert a wedge (not shown) between each blade and theadjacent upright wall of the recess 30.

If the rim 24 has four, six, eight, or more reeach second recess 30 isprovided with a cutting 10 blade, and so on,

It is to be understood that various shapes of cutting blades may beemployed in this device and that the form of the invention herewithshown and described is to be taken as a preferred 15 example orembodiment of the same.

What I claim as my invention and desire to secure by Letters Patent inthe United States is:

In a tape cutting machine, the combination of a wheel having a series ofpremade demountable rims each of which is provided with a plurality ofrecesses at different angles from each-other, with a plurality ofcutting blades each 01' which is held in a recess of a demountable rim,and a resilient opposing roller adapted to press a material on saidcutting blades, said recesses of each demountable rim being at varyingangles from each other, all substantially as set forth.

MOE scnmmit.

